DMH - Grundfosnet.grundfos.com/Appl/WebCAPS/streamliterature/Grundfos... · Pump selection 25 Performance data 25 ... cooling water and process water (raw water purification,

GRUNDFOS DATA BOOKLET

DMHHydraulically actuated piston diaphragm dosing pumps and accessories60 Hz

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DMH

1. Product introduction 3Performance range 3Features and benefits 4

2. Identification 6Type key 6

3. Functions and options 7Capacity control 7Electric servomotor 9AR control unit 9Stroke sensor 10AMS diaphragm protection system 10Diaphragm leakage detection 10

4. Construction 12General information 12Sectional drawings 12

5. Technical data 21Dimensions 21Weights 24Motor power 24Flange sizes, pumps without motor 24Pump protection class 24Accuracy 24Temperature of dosing liquid 24

6. Pump selection 25Performance data 25Catalog variants 29

7. Accessories for small dosing pumps 35Installation kits for dosing pumps 35Cables and plugs 36Tubing 36Foot valves 37Suction lances 38Injection units 41Multi-function valves, pressure relief valves, pressure loading valves 43Pump connection kits and inlay kits 45Adaptors 46

8. Accessories for large dosing pumps 48Overview of a dosing system 48Cables and plugs 49Foot valve 50Injection valve 51Calibration columns 52Back-pressure or relief valve selection 53Level-control units 59Wall bracket 60

9. Pumped liquids 61

10. Further product information 62WebCAPS 62WinCAPS 63Grundfos GO 64

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DMH 1

1. Product introduction

Performance range

Fig. 1 DMH performance range

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278

145

232

725

1450

2900

0 63.90

10

16

50

100

200

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P[psi]

P[bar]

DMH60 Hz

Q [US gal/hr]11.4 53.925.4

10520 242Q [l/h]

43 20496

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DMH1

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Features and benefits

Fig. 1 DMH model 257 and 288

The preferred choice for demanding applications

The Grundfos DMH range is a series of extremely strong, robust hydraulic pumps for applications requiring reliable dosing and high pressure capabilities. The DMH 28x models have been especially designed for high pressure applications from 725 up to 2900 psi (50 up to 200 bar). The range is highly versatile: it covers a wide flow range and offers a variety of dosing head sizes, materials and accessories. Customers worldwide have enjoyed years of trouble-free operation from their DMH pumps.

Accurate dosing all the time

DMH pumps have a very high dosing accuracy. Control the capacity by adjusting the stroke length from 0 to 100 % with a ± 1 % repeatable accuracy.

Smooth and low-pulsation dosing

The DMH range combines sophisticated drive technology and gear kinematics to ensure smooth and low-pulsation dosing. This means less stress on system components, such as tubes and valves, and leads to longer service intervals for the entire system.

Prepared for performance and safety in extreme situations

The DMH 250 series of pumps is available with PVC, PVDF, polypropylene, stainless steel and Hastelloy C wetted components. For high pressure requirements, select from the series of stainless steel or Hastelloy C DMH 280 pumps, rated up to 2900 psi (200 bar). Other wetted materials include Viton, EPDM, PTFE and glass. All models are fitted with a PTFE diaphragm, with the AMS diaphragm protection system and internal relief valve for pump protection.

Flexibility in pump configuration and applications

A number of different product configurations are available to match requirements. The DMH offers: manual or automatic stroke-length adjustment with electric servomotor. Pumps fitted with double diaphragm with failure indication, or special dosing heads with electrical heating. Wetted parts are available in material combinations that suit virtually all dosing applications. Choose the best configuration for your specific dosing task.

Ready for tough application areas

Power plants

• Dosing of various chemicals for the treatment of boiler feed water, cooling water and process water (raw water purification, chemicals for ion exchangers, supplementary water treatment, effluent water neutralization).

• dosing of ammonia, hydrazine, phosphates in high pressure areas (e.g. boiler feed water).

Petrochemical industry, oil and gas industry, refineries

• Dosing of chemicals for treatment of cleaning water and process water

• dosing of wax as lubricant in oil pipelines

• dosing of inhibitors and anticorrosion chemicals to protect oil pipelines

• dosing of additives and catalysts

• odorization of gas for safety in case of leakages.

Treatment of process water and drinking water

• Rough environments (hot climate, desert, outdoor installations)

• higher flow and pressure ratings.

Dosing of flammable liquids

• Dosing of alcohol or methanol in wastewater treatment

• cleaning of kerosene and gasoline in mechanical engineering and airport areas

• dosing of ethanol and methanol

• dosing of food-grade alcohol for disinfection in meat and bread packaging.

MotorsDMH pumps use high torque electric motors.

Explosion proof motors complying with Class I, Group D and Class II, Groups F&G or ATEX motors are available on request.

For voltages and more details, please see the type key on page 6. Motors for higher ambient temperature, higher humidity, motors with forced ventilation and anti-condensation heaters as well as VIK motors are available on request.

Pumps without motor are standard.

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DMH 1

API 675 certificatesDMH pumps can be certified according to API 675. This is commonly used in petroleum, chemical refineries, and transmission pipeline applications. Contact Grundfos for available models. Deviations include for example:

• The steady-state flow accuracy is within ± 1 % of the rated capacity.

• Several DMH pump models have cap screws.

• Several DMH pump models have internal socket-type bolting.

• DMH pumps are available with threaded DIN/EN or NPT connections (DN 4 up to DN 20). DN 32 slip-on flanges are used.

• Double diaphragm is filled with paraffin oil.

• DIN/EN code is applied for metal parts of DMH.

• Enclosure is made of grey cast iron.

• Dosing head is made of PVC, PP, PVDF, or stainless steel.

• For shipment, threaded openings are covered with plastic caps.

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2. Identification

Type key

Other variants on request.

Example: DMH 13- 10 AR- PVC V/ G/ S- H 1 A9A9 B E3

Pump type Specialty code

DMH E3 API675

Max. flow (l/hr at 50 Hz) Mains plug

Max. pressure (bar)B North America

No plug

Control variant Connection, discharge/inlet

B Basic A3 3/4" FNPT (SS)

AR External control (AR control unit) A7 3/4" MNPT (non-SS)

AT54-20 mA stroke length control1 x 115 V, 50/60 Hz servomotor/actuator

A9 1/2" MNPT

B6 4/6 mm pipe

Pump head material C2 8/10 mm pipe

P 1 1/4" ANSI flange

PP Polypropylene S 3/8" ID x 1/2" OD tubing (DDI 60)

PVC Polyvinyl chloride V 1/4" FNPT (SS)

PV PVDF (Polyvinylidene flouride) X No connector

SS 316 Stainless steelCheck valve type

Y Hastelloy C

1 Standard valves

Heads with leak detection: 2Spring-loaded - 0.7 psi (0.05 bar) inlet and discharge

PP-L Polypropylene opening pressure

PVC-L Polyvinyl chloride 3Spring-loaded - 0.7 inlet(0.05 bar), 11.6 psi (0.8 bar) discharge

PV-L PVDF (Polyvinylidene flouride) opening pressure

SS-L 316 Stainless steel 4 Spring-loaded discharge

Gasket material5 SS valves for abrasive fluids

7 Not spring-loaded; larger suction valve:

E EPDM (ethylene propylene diene monomer) suction side DN 32; discharge side DN 20

V FKM (fluorocarbon)Supply voltage

T PTFE (polytetrafluoroethylene, eg. Teflon®)

Valve ball materialF Without motor, NEMA flange

Only AR pumps include motors

C Ceramic H 1 x 110-120 V, 50/60 Hz

G GlassControl position

SS Stainless steel, 316

T PTFE (polytetrafluoroethylene eg. Teflon®) F Front, 180 ° from pump head

Y Hastelloy C S Side 90 ° from pump head

W Wall mounted

X No control panel

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3. Functions and options

Capacity controlDepending on the application, DMH pumps can be equipped with different functions for setting and controlling the capacity:

• DMH B: Manual stroke length control.

• All DMH pumps can be fitted with a servomotor for remote stroke-length control.

• Motor speed control with external variable frequency drive (VFD).

• DMH AR: Electronic unit for automatic stroke frequency control, pulse control, analog signals, alarm relay (available for DMH models 251, 252, 253, 280, 281).

Capacity control by stroke-length adjustmentThe capacity is controlled manually by means of the stroke length adjustment knob or electrically by a servomotor.

The stroke frequency remains constant.

Fig. 4 Relation of stroke length adjustment - capacity

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Fig. 2 Capacity control by stroke length adjustment knob

Fig. 3 Relation of stroke length and capacity

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h [%]

Q[g/ h]

Discharge

Suction

Duration

Discharge

Suction

Duration

Discharge

Suction

Duration

Capacity setting

100 %

50 %

10 %

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Capacity control with external variable frequency drive (VFD)The capacity of DMH pumps with motors with PTC-resistor can be adjusted via a variable frequency drive by changing the motor speed.

Capacity control with AR electronicsThe capacity of the DMH models 251, 252, 253, 280 and 281 with single-phase motor and AR electronics can be controlled by regulation of the pause time between strokes. This is carried out by analog or pulse signals or via manual stroke frequency adjustment.

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Fig. 5 Relation of motor frequency setting - capacity Fig. 6 Relation of motor frequency - capacity

Discharge

Suction

Duration

Discharge

Suction

Duration

Discharge

Suction

Duration

Motor frequency setting

Motor frequency 100 Hz



f [Hz]

Q[g/h]

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11Fig. 7 Relation of stroke frequency setting - capacity Fig. 8 Relation of stroke frequency - capacity

Discharge

Suction

Duration

Discharge

Suction

Duration

Discharge

Suction

Duration

Stroke frequency setting

Stroke-pause ratio 1:1



n [min-1]

Q[g/h]

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DMH 3

Electric servomotorTo facilitate automatic control of the flow rate, the DMH pumps can be equipped with an electric servomotor in a metal housing (IP65). The electric servomotor primarily consists of an overload-proof motor, reduction gear and min/max limit switches.

The electric servomotor is connected to the control slide of the dosing pump. This adjusts the active stroke length and the corresponding dosing flow.

The electric servomotor is available as ATEX version, EX II2G Ex db IIB T4 for potentially explosive zones.

Variants

• Electric servomotors with different operating voltages.

• Electric servomotors with 4-20 mA control and output signal and manual/automatic switch.

• Electric servomotors with 1000 Ω feedback potentiometer.

Fig. 9 Servomotor

Fig. 10 DMH with servomotor

AR control unitA convenient electronic unit in a plastic housing (IP65) for DMH models 251, 252, 253, 280 and 281 with single-phase motors, the AR control unit is mounted on the terminal box of the motor.

Control modes

• Manual control: Stroke frequency is manually adjustable from 1 up to the maximum strokes per minute.

• Pulse signal control: multiplier 1:n (n strokes per incoming pulse) and divisor n:1 (1 stroke per n incoming pulses), memory function (stores a maximum of 65,000 pulses).

• 0/4-20 mA analog signal control: adjustment of stroke frequency in proportion to the current signal, weighting of current input is possible.

Inputs

• Pulse signal

• analog signal

• remote on/off

• tank-empty sensor

• dosing controller and diaphragm leakage sensor.

Outputs

• Analog signal

• error signal (fault)

• stroke signal

• low-level signal.

Fig. 11 AR control unit on DMH

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Stroke sensorDMH pumps with stroke sensor are especially designed for batch dosing and other mixing or filling tasks.

An optional stroke sensor can be mounted in the gear cover of a DMH pump.

The stroke sensor is inductive and has a NAMUR output and 6.5 ft (2 m) of PVC cable.

AMS diaphragm protection systemThe unique diaphragm protection system AMS has a tactile surface (5) which touches the dosing diaphragm (4). If the suction or discharge line is blocked due to a fault in the system, the tactile surface closes the hydraulic chamber (6). Although the piston (7) continues moving, the diaphragm cannot be overstretched.

Fig. 12 AMS diaphragm protection system

Legend

Diaphragm leakage detectionDMH piston diaphragm dosing pumps with diaphragm leakage detection are equipped with

• Dosing head with double-diaphragm system

• contact pressure gauge with check valve.

Double-diaphragm system

Fig. 13 Double-diaphragm system

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Pos. Description

1 Dosing head

2 Pressure relief valve

3 Dosing chamber

4 Dosing diaphragm

5 AMS diaphragm protection system

6 Hydraulic chamber

7 Piston

1 2

3 4 5 6 7

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Pos. Description

1 Dosing head

2 Contact pressure gauge (installation position)

3 Clamping sleeves

4 Diaphragm on the dosing head side

5 Covering ring

6 Sealing ring

7 Intermediate disk

8 Sealing ring

9 Covering ring

10 Diaphragm on the pump side

4 10987652 31

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DMH 3

Contact pressure gauge with check valve

Fig. 14 Contact pressure gauge on a DMH dosing head

Fig. 15 Contact pressure gauge

Functional principle

The check valve and the gap between the diaphragms are filled with paraffin oil (separating agent) at the factory. If one of the diaphragms breaks, dosing medium or hydraulic oil flows into the gap between the diaphragms, and then into the valve.

The system pressure is applied to the valve, and the contact pressure gauge is activated. A potential-free reed contact can trigger an alarm or switch off the pump.

Fig. 16 DMH with contact pressure gauge for diaphragm leakage detection

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Pos. Description

1 Contact output

2 Contact pressure gauge

3 Union nut

4 Connection for ground cable

5 Deaeration screw

6 Union nut

7 Check valve with ball

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4. Construction

General informationDMH pumps are positive displacement pumps with hydraulic diaphragm motion. The DMH range contains the low pressure DMH models 250 up to 362 psi (25 bar) and the high pressure DMH models 280 up to 2900 psi (200 bar). The pump range includes drive assemblies in three housing sizes as well as single-head and double-head pumps.

Sectional drawings

DMH models 251, 252

Fig. 17 Sectional drawing, DMH models 251, 252

Legend

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7813

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Pos. Description

1 Motor

2 Worm gearing

3 Eccentric

4 Return spring (not for all models)

5 Control slide

6 Piston

7 Combined pressure relief and degassing valve

8 Oil degassing valve

9 Diaphragm protection system (AMS)

10 Dosing diaphragm

11 Dosing head

12 Suction valve

13 Discharge valve

14 Stroke-length adjustment knob

15 Venting screw with oil-level gauge

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DMH model 253

Fig. 18 Sectional drawing, DMH model 253

Legend

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Pos. Description

1 Motor

2 Worm gearing

3 Eccentric


5 Control slide

6 Piston




10 Dosing diaphragm

11 Dosing head

12 Suction valve

13 Discharge valve



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DMH model 254


Legend

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12 9 325611 10 4

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Pos. Description

1 Motor

2 Worm gearing

3 Eccentric


5 Control slide

6 Piston



10 Dosing diaphragm

11 Dosing head

12 Suction valve

13 Discharge valve



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DMH model 255


Legend

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713

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12 9 325411 10 6DMH 403-10

Pos. Description

1 Motor

2 Worm gearing

3 Eccentric


5 Control slide

6 Piston



10 Dosing diaphragm

11 Dosing head

12 Suction valve

13 Discharge valve



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DMH model 257


Legend

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713

12 9 325611 10

1

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Pos. Description

1 Motor

2 Worm gearing

3 Eccentric

5 Control slide

6 Piston



10 Dosing diaphragm

11 Dosing head

12 Suction valve

13 Discharge valve



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DMH model 280


Legend

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781316

12 9 325611 10

1

15

14

Pos. Description

1 Motor

2 Worm gearing

3 Eccentric

5 Control slide

6 Piston




10 Dosing diaphragm

11 Dosing head

12 Suction valve

13 Discharge valve



16 Dosing head venting valve (priming)

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DMH models 283, 288

Fig. 23 Sectional drawing, DMH models 283, 288

Legend

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781316

1

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12 9 325611 10

Pos. Description

1 Motor

2 Worm gearing

3 Eccentric

5 Control slide

6 Piston




10 Dosing diaphragm

11 Dosing head

12 Suction valve

13 Discharge valve




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DMH models 285, 286, 287

Fig. 24 Sectional drawing, DMH models 285, 286, 287

Legend

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781316

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Pos. Description

1 Motor

2 Worm gearing

3 Eccentric

5 Control slide

6 Piston




10 Dosing diaphragm

11 Dosing head

12 Suction valve

13 Discharge valve




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Functional principle• The rotational movement of the motor (1) is

converted via the worm gearing (2) and eccentric (3) into the reciprocating movement of the piston (6) creating the suction and discharge stroke.

• The piston has a hollow bore and a series of radial hydraulic control holes, which provide the hydraulic connection between the drive and the piston stroke. The control sleeve (5) covers the holes during the stroke and seals the stroke area from the drive area.The hydraulic PTFE diaphragm (10) displaces a metered volume of dosing liquid from the dosing head (11) into the dosing piping. On the suction stroke, the piston creates a low pressure in the dosing head; the ball valve (13) on the discharge side is sealed by the line pressure and the dosing liquid flows through the suction valve (12) into the dosing head.

• The stroke volume size is solely determined by the position of the control slide. The active stroke length and corresponding average dosing flow can be changed continuously and linearly from 10 to 100 % using the stroke-length adjustment knob and micrometer scale (14).

• The safety valve (7) acts as both a pressure relief valve and a hydraulic oil degassing valve. It opens if the pressure in the dosing system is over the set pressure and by-passes hydraulic fluid, thus protecting the pump from overpressure. The degassing valve ensures a constant, high dosing accuracy by removing air from the hydraulic oil.

• The unique diaphragm protection system AMS (9) touches and rides on the dosing diaphragm (10). If the suction or discharge line is blocked due to a fault in the system, the AMS valve seals the hydraulic chamber. Although the piston (6) continues moving, the diaphragm cannot be overstretched.

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DMH 5

5. Technical data

Dimensions

DMH models 251-253, 280, 281

Fig. 25 Dimensions, DMH models 251 to 281

Note: Standard B variant DMH pumps do not include a motor. See motor data sheet specific to motor selected for motor dimensions.

Dual head pumps have two micrometers.

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DMH modelA B C D D1 E F Fx G H J K M Mx N

[in. (mm)] [in. (mm)]

25112.92 (328)

8.51(216)

3.84(97.5)

8.47(215)

G 5/86.30(160)

5.99(152)

5.99(152)

3.37(85.5)

17.01(432)

0.63(16)

4.57(116)

7.09(180)

7.09(180)

4.63(117.5)

25212.92 (328)

8.51(216)

3.84(97.5)

8.47(215)

G 5/86.30(160)

5.99(152)

5.99(152)

3.37(85.5)

17.01(432)

0.63(16)

4.57(116)

7.09(180)

7.09(180)

4.63(117.5)

25313.78(350)

8.51(216)

3.84(97.5)

8.47(215)

G 5/4 (1 1/4")7.05(179)

5.99(152)

5.99(152)

3.37(85.5)

18.59(472)

0.52(13)

4.89(124)

7.09(180)

7.09(180)

4.63(117.5)

28013.67(347)

8.51(216)

3.84(97.5)

8.47(215)

G 3/85.60(142)

5.99(152)

5.99(152)

3.37(85.5)

18.31(465)

0.63(16)

4.49(114)

7.09(180)

7.09(180)

4.63(117.5)

28112.72(323)

8.51(216)

3.84(97.5)

8.47(215)

G 5/86.11(155)

5.99(152)

5.99(152)

3.37(85.5)

17.01(432)

0.63(16)

4.49(114)

7.09(180)

7.09(180)

4.63(117.5)

K F

D1

M

Fx

E

D

G

B

J

CN

4.015 in. (102 mm)

A

H

6.5 in. (165 mm)

Mx

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DMH models 254-257, 283-288

Fig. 26 Dimensions, DMH models 254 to 288

Note: Standard B variant DMH pumps do not include a motor. See motor data sheet specific to motor selected for motor dimensions.

Dual head pumps have two micrometers.

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DMH modelA B C D

D1E F Fx G H J K M Mx N

[in. (mm)] [in. (mm)]

25417.17(436)

9.85(250)

6.15(156)

10.08(256)

G 5/4 (1 1/4")8.15(207)

7.29(185)

10.24(260)

4.97(126)

28.27(718)

0.40(10)

7.29(185)

8.86(225)

11.82(300)

7.09(180)

25520.08(510)

9.85(250)

6.15(156)

10.08(256)

G 5/4 (1 1/4")8.98(228)

7.29(185)

10.24(260)

4.97(126)

34.22(869)

0.40(10)

9.97(253)

8.86(225)

11.82(300)

7.09(180)

25723.19(589)

10.67(271)

6.70(170)

10.67(271)

flange DN 3211.03(280)

9.49(241)

13.12(333)

5.08(129)

38.59(980)

0.99(25)

10.32(262)

11.42(290)

15.04(32)

7.66(194.5)

28317.21(437)

9.85(250)

6.15(156)

10.08(256)

G 5/4 (1 1/4")8.31(211)

7.29(185)

10.24(260)

4.97(126)

27.80(706)

0.40(10)

7.17(182)

8.86(225)

11.82(300)

7.09(180)

28520.08(510)

10.67(271)

6.70(170)

10.67(271)

G 5/4 (1 1/4")7.05(179)

9.49(241)

13.12(333)

5.08(129)

32.29(820)

0.99(25)

7.37(187)

11.42(290)

15.04(382)

7.66(194.5)

28620.08(510)

10.67(271)

6.70(170)

10.67(271)

G 5/4 (1 1/4")9.22(234)

9.49(241)

13.12(333)

5.08(129)

32.29(820)

0.99(25)

7.52(191)

11.42(290)

15.04(382)

7.66(194.5)

28719.30(490)

10.67(271)

6.70(170)

10.67(271)

G 5/88.19(208)

9.49(241)

13.12(333)

5.08(129)

32.05(814)

0.99(25)

6.93(176)

11.42(290)

15.04(382)

7.66(194.5)

28816.74(425)

9.85(250)

6.15(156)

10.08(256)

G 5/88.19(208)

7.29(185)

10.24(260)

4.97(126)

27.56(700)

0.40(10)

6.82(173)

8.86(225)

11.82(300)

7.09(180)

K

KF

Fx

Mx

M

E

D

B

G

JC

N

D1

HA

0.374 in. (9.5 mm)

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AR control unit

Fig. 27 Dimensions, AR control unit (mounted on DMH)

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Manual

Run

1/min

Mode

DownStartStop

Menu Up

2

220-240V

1 43 5

110-120V

contact/analogtank level

output/offflow / MBS fault / stroke

45°

3.55 in. (90 mm)

5.60 in. (142.2 mm)

Total approx. 7.80 in. (198 mm)

2.80 in. (71 mm)To

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3.00

in. (

330

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Tota

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4.25

in.

(108

mm

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Tota

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2.96

in.

(75

mm

)

Tota

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rox.

6.8

5 in

. (17

4 m

m)

23

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DMH5

24

Weights

The weights are approximate, and vary according to pump variants.

Motor power

* Double-head pump: 2 Hp (1.5 kW)** Double-head pump: 3 Hp (2.2 kW)*** DMH 270-10 at 100 Hz, 142 gal./h (540 l/h)

Flange sizes, pumps without motor

Pump protection classThe motor protection defines the pump protection class.

Accuracy

The values in the table above are based on the following conditions:

• dosing liquid: water

• fully vented dosing head

• standard version of pump.

Temperature of dosing liquid

* For SIP/CIP applications, a temperature of 293 °F (145 °C) is permissible for a short time (approx. 15 min.) at p < 29 psi (2 bar).(SIP = Steaming-In-Place/Sterilization)(CIP = Cleaning-In-Place)

DMH model

Single-head pump Double-head pump

SSPVC,

PVDF, PPSS

PVC,PVDF, PP

Weight without motor [(lb (kg)]

251 22.00 (10.0) 18.70 (8.5) 33.00 (15.0) 27.50 (12.5)

252 22.00 (10.0) 18.70 (8.5) 33.00 (15.0) 27.50 (12.5)

253 30.80 (14.0) 19.80 (9.0) 52.80 (24.0) 38.50 (17.5)

254 66.00 (30.0) 51.70 (23.5) 105.60 (48.0) 88.00 (40.0)

255 72.60 (33.0) 56.10 (25.5) 121.00 (55.0) 107.80 (49.0)

257 129.80 (59.0) 101.20 (46.0) 191.40 (87.0) 151.80 (69.0)

280 24.86 (11.3) - 45.54 (20.7) -

281 23.10 (10.5) - 41.80 (19.0) -

283 55.00 (25.0) - 104.50 (47.5) -

285 78.10 (35.5) - 127.60 (58.0) -

286 83.60 (38.0) - 138.60 (63.0) -

287 83.60 (38.0) - 138.60 (63.0) -

288 55.00 (25.0) - 102.30 (46.5) -

DMH Model

Capacity[gal./h (l/h)]

Counter pressure[psi (bar)]

Motor power[Hp (kW)]

50 Hz 60 Hz 100 Hz

251 All 145 (10)0.12

(0.09)0.12

(0.09)0.12

(0.09)

251 All 235 (16.25)0.12

(0.09)0.12

(0.09)0.24

(0.18)

252 All 145 (10)0.12

(0.09)0.12

(0.09)0.24

(0.18)

252 All 232 (16)0.24

(0.18)0.24

(0.18)0.24

(0.18)

253 All All0.24

(0.18)0.24

(0.18)0.24

(0.18)

254 All 145 (10)0.74

(0.55)0.74

(0.55)0.74

(0.55)

254 All 232 (16)0.74

(0.55)0.74

(0.55)1

(0.75)

255 All All0.74

(0.55)0.74

(0.55)0.74 (0.55)

1 (0.75)***

257 All All1.5

(1.1)*1.5

(1.1)*2

(1.5)**

280 All All0.24

(0.18)0.24

(0.18)0.24

(0.18)

281 All All0.24

(0.18)0.24

(0.18)0.24

(0.18)

283 All All0.74

(0.55)0.74

(0.55)0.74

(0.55)

285 All All1.5

(1.1)1.5

(1.1)2

(1.5)

286 All All1.5

(1.1)1.5

(1.1)2

(1.5)

287 All All1.5

(1.1)1.5

(1.1)2

(1.5)

288 All All0.74

(0.55)0.74

(0.55)0.74

(0.55)

DMH model IEC NEMA Pump housing size

251

BG 63 B5BG 71 B5

56C 1 (small)

252

253

280

281

254

BG 80 B14 56C 2 (medium)255

283

288

257

BG 90 B14BG 100 B14

145 TC 3 (large)285

286

287

Motor capacity Protection rating

up to 0.24 Hp (up to 0.18 kW)(1 AC and 3 AC)

IP65

0.74 Hp - 3 Hp (0.55 - 2.2 kW)(3 AC)

IP55 or IP65 (depending on motor version)

DMH model Dosing flow fluctuation Linearity deviation

251 to 257< ± 1.5 % within the10 to 100 % control range

± 2 % of thefull-scale value

280 to 288< ± 1 % within the10 to 100 % control range

± 1 % of thefull-scale value

Dosing headmaterial

Permissible temp. of dosing liquid

p < 145 psi(10 bar)[°F (°C)]

p = 145-232 psi(10-16 bar)

[°F (°C)]

PVC32 to 104(0 to 40)

32 to 68(0 to 20)

Stainless steel, 1.4571 (EN 10027-2), 316Ti (AISI)*

14 to 212(-10 to +100)

14 to 212(-10 to +100)

Stainless steel, 2.4610 (Alloy C-4) (EN 10027-2)*

14 to 212(-10 to +100)

14 to 212(-10 to +100)

PP32 to 104(0 to 40)

32 to 68(0 to 20)

PVDF

14 to 140(-10 to +60)

(158 °F (70 °C) at 130 psi (9 bar))

32 to 68(0 to 20)

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DMH 6

6. Pump selection

1. Select a DMH model from the "Performance data" tables.

2. Look into the "Catalog variants (limited selection)" tables.

3. If you cannot find a suitable DMH dosing pump there, select the suitable material combination from the "Catalog variants" tables.

Performance data

60 Hz, single head1. Double head pumps have double capacity.

2. The values refer to dosing liquids with the following characteristics:

• Newtonian and non-degassing

• not containing suspended matter

• density similar to water.

Note: The viscosity increases with decreasing temperature!

We recommend to test the performance with the respective liquid.

25

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DMH6

26

Max. counterpressure: 58 psi (4 bar)

* Flooded suction


* Flooded suction

DMHmodel

CapacityStroke

frequency Pumptype

Stroke volume

Max.suction lift

(at viscosity similar to

water)

Max.suction lift

(at max. viscosity)

Max. inlet pressure

Max. viscosityat 60 Hz

VFD possible (100 Hz, PTC)

[gal./h (l/h)] [n/min] [ml] [ft (m)] [ft (m)] [psi (bar)] [mPas]

DMH 257 237.75 (900) 88 DMH 750-4 171 0* 0* 11.6 (0.8) 50

DMHmodel

CapacityStroke

frequency Pumptype

Stroke volume

Max.suction lift


water)

Max.suction lift

(at max. viscosity)

Max. inlet pressure

Max. viscosity

at 60 HzVFD possible (100 Hz, PTC)


DMH 251

0.77 (2.9) 17 DMH 2.4-10 3.3 3.28 (1) 0* 116 (8) 300

1.59 (6) 35 DMH 5-10 3.3 3.28 (1) 0* 116 (8) 300

4.23 (16) 75 DMH 13-10 3.3 3.28 (1) 0* 116 (8) 100

6.08 (23) 115 DMH 19-10 3.3 3.28 (1) 0* 116 (8) 100 -

DMH 252

3.44 (13) 35 DMH 11-10 6.4 3.28 (1) 0* 116 (8) 300

7.67 (29) 75 DMH 24-10 6.4 3.28 (1) 0* 116 (8) 100

11.63 (44) 115 DMH 37-10 6.4 3.28 (1) 0* 116 (8) 100 -

DMH 253

6.61 (25) 35 DMH 21-10 11.3 3.28 (1) 0* 72.5 (5) 300

13.74 (52) 76 DMH 43-10 11.3 3.28 (1) 0* 72.5 (5) 100

21.14 (80) 115 DMH 67-10 11.3 3.28 (1) 0* 72.5 (5) 100 -

26.42 (100) 144 DMH 83-10 11.3 3.28 (1) 0* 72.5 (5) 10 -

DMH 254

15.86 (60) 31 DMH 50-10 32 3.28 (1) 0* 72.5 (5) 300

32.23 (122) 65 DMH 102-10 32 3.28 (1) 0* 72.5 (5) 100

45.44 (172) 90 DMH 143-10 32 3.28 (1) 0* 72.5 (5) 100

55.48 (210) 110 DMH 175-10 32 3.28 (1) 0* 72.5 (5) 100 -

67.63 (256) 134 DMH 213-10 32 3.28 (1) 0* 72.5 (5) 5 -

DMH 255

29.59 (112) 29.6 DMH 96-10 60 0* 0* 116 (8) 100

61.56 (233) 65 DMH 194-10 60 0* 0* 116 (8) 100

85.6 (324) 90 DMH 270-10 60 0* 0* 116 (8) 100

105.15 (398) 110 DMH 332-10 60 0* 0* 116 (8) 100 -

127.86 (484) 134 DMH 403-10 60 0* 0* 116 (8) 5 -

DMH 257

69.75 (264) 34 DMH 220-10 131 3.28 (1) 0* 116 (8) 200

139.49 (528) 67 DMH 440-10 131 3.28 (1) 0* 116 (8) 50

182.28 (690) 88 DMH 575-10 131 3.28 (1) 0* 116 (8) 50

244.1 (924) 118 DMH 770-10 131 3.28 (1) 0* 116 (8) 50 -

278.97 (1056) 134 DMH 880-10 131 0* 0* 116 (8) 5 -

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DMH 6


* Flooded suction


* Flooded suction


* Flooded suction

DMHmodel

CapacityStroke

frequency Pumptype

Stroke volume

Max.suction lift


water)

Max.suction lift

(at max. viscosity)

Max. inlet pressure




DMH 251

0.74 (2.8) 17 DMH 2.3-16 3.1 3.28 (1) 0* 116 (8) 300

1.56 (5.9) 35 DMH 4.9-16 3.1 3.28 (1) 0* 116 (8) 300

3.7 (14) 75 DMH 12-16 3.1 3.28 (1) 0* 116 (8) 100

5.82 (22) 115 DMH 18-16 3.1 3.28 (1) 0* 116 (8) 100 -

DMH 252

3.18 (12) 35 DMH 10-16 6,3 3.28 (1) 0* 116 (8) 300

7.14 (27) 75 DMH 23-16 6.3 3.28 (1) 0* 116 (8) 100

11.36 (43) 115 DMH 36-16 6.3 3.28 (1) 0* 116 (8) 100 -

DMH 254

14.53 (55) 31 DMH 46-16 30 3.28 (1) 0* 72.5 (5) 300

30.65 (116) 65 DMH 97-16 30 3.28 (1) 0* 72.5 (5) 100

43.07 (163) 90 DMH 136-16 30 3.28 (1) 0* 72.5 (5) 100

52.31 (198) 110 DMH 166-16 30 3.28 (1) 0* 72.5 (5) 100 -

63.93 (242) 134 DMH 202-16 30 3.28 (1) 0* 72.5 (5) 5 -

DMH 257

86.13 (326) 67 DMH 272-16 78.2 3.28 (1) 0* 11.6 (0.8) 100

107.79 (408) 88 DMH 340-16 78.2 0* 0* 11.6 (0.8) 100

142.66 (540) 118 DMH 450-16 78.2 3.28 (1) 0* 11.6 (0.8) 50 -

164.85 (624) 134 DMH 520-16 78.2 0* 0* 11.6 (0.8) 5 -

215.57 (816) 175 DMH 680-16 78.2 0* 0* 11.6 (0.8) 5 -

DMHmodel

CapacityStroke

frequency Pumptype

Stroke volume

Max.suction lift


water)

Max.suction lift

(at max. viscosity)

Max. inlet pressure




DMH 251

0.69 (2.6) 17 DMH 2.2-25 2.9 3.28 (1) 0* 116 (8) 300

1.43 (5.4) 35 DMH 4.5-25 2.9 3.28 (1) 0* 116 (8) 300

3.44 (13) 75 DMH 11-25 2.9 3.28 (1) 0* 116 (8) 100

5.29 (20) 115 DMH 17-25 2.9 3.28 (1) 0* 116 (8) 100 -

DMHmodel

CapacityStroke

frequency Pumptype

Stroke volume

Max.suction lift


water)

Max.suction lift

(at max. viscosity)

Max. inlet pressure




DMH 286 26.95 (102) 67.2 DMH 85-50 25.3 3.28 (1) 0* 72.5 (5) 50

DMH 286 35.14 (133) 87.6 DMH 111-50 25.3 3.28 (1) 0* 72.5 (5) 50

DMH 286 53.9 (204) 134 DMH 170-50 25.3 3.28 (1) 0* 72.5 (5) 5 -

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DMH6

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* Flooded suction


* Flooded suction

DMHmodel

CapacityStroke

frequency Pumptype

Stroke volume

Max.suction lift


water)

Max.suction lift

(at max. viscosity)

Max. inlet pressure




DMH 281

0.64 (2.4) 35 DMH 2-100 1.1 0* 0* 145 (10) 50

1.33 (5) 76 DMH 4.2-100 1.1 3.28 (1) 0* 145 (10) 50

2.04 (7.7) 115 DMH 6.4-100 1.1 3.28 (1) 0* 145 (10) 50 -

2.54 (9.6) 144 DMH 8-100 1.1 3.28 (1) 0* 145 (10) 5 -

DMH 283

3.18 (12) 32 DMH 10-100 6 3.28 (1) 0* 72.5 (5) 100

6.08 (23) 65 DMH 19-100 6 3.28 (1) 0* 72.5 (5) 50

8.46 (32) 90 DMH 27-100 6 3.28 (1) 0* 72.5 (5) 50

10.57 (40) 110 DMH 33-100 6 3.28 (1) 0* 72.5 (5) 50 -

12.69 (48) 134 DMH 40-100 6 3.28 (1) 0* 72.5 (5) 5 -

DMH 285

6.35 (24) 34 DMH 20-100 12 3.28 (1) 0* 72.5 (5) 100

12.69 (48) 67 DMH 40-100 12 3.28 (1) 0* 72.5 (5) 50

16.38 (62) 88 DMH 52-100 12 3.28 (1) 0* 72.5 (5) 50

22.2 (84) 118 DMH 70-100 12 3.28 (1) 0* 72.5 (5) 50 -

25.37 (96) 134 DMH 80-100 12 3.28 (1) 0* 72.5 (5) 5 -

DMHmodel

CapacityStroke

frequency Pumptype

Stroke volume

Max.suction lift


water)

Max.suction lift

(at max. viscosity)

Max. inlet pressure




DMH 280

0.46 (1.74) 76 DMH 1.3-200 0.36 0* 0* 14.5 (1) 5

0.71 (2.66) 115 DMH 2.2-200 0.36 0* 0* 14.5 (1) 5 -

0.9 (3.37) 144 DMH 2.5-200 0.36 0* 0* 14.5 (1) 5 -

DMH 287

2.91 (11) 34 DMH 9-200 5.3 3.28 (1) 0* 72.5 (5) 100

5.82 (22) 67 DMH 18-200 5.3 3.28 (1) 0* 72.5 (5) 50

7.4 (28) 88 DMH 23-200 5.3 3.28 (1) 0* 72.5 (5) 50

9.78 (27) 118 DMH 31-200 5.3 3.28 (1) 0* 72.5 (5) 50 -

11.36 (43) 134 DMH 36-200 5.3 3.28 (1) 0* 72.5 (5) 5 -

DMH 288

1.14 (4.3) 31 DMH 3.3-200 2.33 3.28 (1) 0* 72.5 (5) 100

2.38 (9) 65 DMH 7.5-200 2.33 3.28 (1) 0* 72.5 (5) 50

3.31 (12.5) 90 DMH 10-200 2.33 3.28 (1) 0* 72.5 (5) 50

4.07 (15.4) 118 DMH 13-200 2.33 3.28 (1) 0* 72.5 (5) 50 -

4.92 (18.6) 134 DMH 15-200 2.33 3.28 (1) 0* 72.5 (5) 5 -

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DMH 6

Catalog variantsThe tables below show the catalog variants of single-head and double-head DMH pumps. Other DMH versions are available on request:

• control variants

• dosing head materials (e.g. alloy C-4)

• supply voltages

• valve types

• connections

• mains plugs

• motor variants

• pumps with API certificate

• pumps with ATEX certificate.

DMH model 251 (DN 8)

Max. flow - pressure[l/h]-[bar]

Control variant

Material Control panel

position

Supply voltage

Valve typeConnection discharge/

suctionMains plug

Motor variantDosing

headGasket Valve ball

DMH 2.4-10DMH 5.0-10DMH 13-10DMH 19-10

DMH 2.3-16DMH 4.9-16DMH 12-16DMH 18-16

BAT5

PPPP-L

E

C

X

F14

A9A9 X E3SS

T

VC

F14

A9A9 X E3G

PVPV-L

TC

T

PVCPVC-L

E

C

X

F14

A9A9 X E3SS

T

TC

F14

A9A9 X E3

T

V

C

G

SS

SSSS-L

T

SS XF

14

A9A9, VV X E3V

E F14

A9A9, VV X E3

AR

PPPP-L

EC

FS

H14

A9A9 B E3

SS

VC

G

PVPV-L

TC

T

PVCPVC-L

E

C

FS

H14

A9A9 B E3

SS

T

TC

T

V

C

G

SS

SSSS-L

E

SSFS

H14

A9A9, VV B E3T

V

DMH 2.2-25DMH 4.5-25DMH 11-25DMH 17-25

BAT5

SSSS-L

E

SS XF

14

A9A9, VV X E3T

V F14

A9A9, VV X E3

ARSS

SS-L

E

SSFS

H14

A9A9, VV B E3T

V

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DMH6

30



Control variant


position

Supply voltage


suctionMains plug

Motor variantDosing


DMH 11-10DMH 24-10DMH 37-10

DMH 10-16DMH 23-16DMH 36-16

BAT5

PPPP-L

E

C

X

F14

A9A9 X E3SS

T

VC

F14

A9A9 X E3G

PVPV-L

TC

T

PVCPVC-L

E

C

X

F14

A9A9 X E3SS

T

TC

F14

A9A9 X E3

T

V

C

G

SS

SSSS-L

E

SS X

F14

A9A9 X E3

TF

14

A9A9 X E3V

AR

PPPP-L

E

C

FS

H14

A9A9 B E3

SS

T

VC

G

PVPV-L

TC

T

PVCPVC-L

E

C

FS

H14

A9A9 B E3

SS

T

TC

T

V

C

G

SS

SSSS-L

E

SSFS

H14

A9A9 B E3T

V

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DMH 6




Control variant


position

Supply voltage


suctionMains plug

Motor variantDosing


DMH 21-10DMH 43-10DMH 67-10DMH 83-10

BAT5

PPPP-L

E

C

X

F14

A9A9, A7A7 X E3SS

T

F14

A9A9, A7A7 X E3T T

V G

PVPV-L

T T

PVCPVC-L

ESS

X

F14

A9A9, A7A7 X E3T

V

C

F14

A9A9, A7A7 X E3G

SS

SSSS-L

E SS

XF

14

A9A9, A3A3 X E3T SS

V SS F14

A9A9, A3A3 X E3

AR

PPPP-L

EC

SST

FS

H14

A9A9, A7A7 B E3T T

V G

PVPV-L

T T

PVCPVC-L

ESS

FS

H14

A9A9, A7A7 B E3

T

V

C

G

SS

SSSS-L

E SSFS

H14

A9A9, A3A3 B E3T SS

V SS


Control variant


position

Supply voltage


suctionMains plug

Motor variantDosing


DMH 50-10DMH 102-10DMH 143-10DMH 175-10DMH 213-10

BAT5

PPPP-L

E

C

X F14

A7A7 X E3

SS

T

T T

V G

PVPV-L

T T

PVCPVC-L

ESS

X F14

A7A7 X E3

T

V

C

G

SS

SSSS-L

E SS

X F14

A3A3 X E3T SS

V SS

DMH 97-16DMH 136-16DMH 166-16DMH 202-16

BAT5

SSSS-L

E SS

X F14

A3A3 X E3T SS

V SS

31

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DMH6

32


* For DMH 403-10 connection size for discharge/suction is DN20/DN32 (e.g. A7P), valve type 7.



* Stainless-steel (SS) ball in deaeration valve** 95731559: 1/4" FNPT connector (use qty. 2 per pump head)


Control variant


position

Supply voltage


suctionMains plug

Motor variantDosing


DMH 194-10DMH 270-10DMH 332-10DMH 403-10*

BAT5

PPPP-L

E

C

X F147*

A7A7* X E3

SS

T

T T

V G

PVPV-L

T T

PVCPVC-L

ESS

X F147*

A7A7* X E3

T

V

C

G

SS

SSSS-L

E SS

X F147*

A3A3* X E3T SS

V SS


Control variant


position

Supply voltage


suctionMains plug

Motor variantDosing


DMH 220-10DMH 440-10DMH 575-10DMH 770-10DMH 880-10

BAT5

PPPP-L

EG

X F14

PP X E3T

V G

PVPV-L

T T

PVCPVC-L

E SSX F

14

PP X E3V G

SSSS-L

E SS

X F14

PP X E3TSS

T

V SS


Control variant


position

Supply voltage


suctionMains plug

Motor variantDosing


DMH 1.3-200DMH 2.2-200DMH 2.5-200

BAT5

SSSS-L

EVT

C* XF 2 B6B6** X E3

F 2 B6B6** X E3

ARSS

SS-L

EVT

C*FS

H 2 B6B6** B E3

Pu

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DMH 6







Control variant


position

Supply voltage


suctionMains plug

Motor variantDosing


DMH 2-100DMH 4.2-100DMH 6.4-100DMH 8-100DMH 9.6-100

BAT5

SSSS-L

EVT

SS X

F 2 VV X E3

F 2 VV X E3

ARSS

SS-L

EVT

SSFS

H 2 VV B E3


Control variant


position

Supply voltage


suctionMains plug

Motor variantDosing


DMH 10-100DMH 19-100DMH 27-100DMH 33-100DMH 40-100DMH 55-100

BAT5

SSSS-L

E SS

X F 2 A3A3 X E3VC

SS

T SS


Control variant


position

Supply voltage


suctionMains plug

Motor variantDosing


DMH 20-100DMH 40-100DMH 52-100DMH 70-100DMH 80-100DMH 105-100

BAT5

SSSS-L

E SS

X F 2 A3A3 X E3VC

SS

T SS


Control variant


position

Supply voltage


suctionMains plug

Motor variantDosing


DMH 85-50DMH 111-50DMH 170-50

BAT5

SSSS-L

E SS

X F12

A3A3 X E3VC

SS

T SS


Control variant


position

Supply voltage


suctionMains plug

Motor variantDosing


DMH 18-200DMH 23-200DMH 31-200DMH 36-200

BAT5

SSSS-L

EVT

SS X F 2 C2C2 X E3

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DMH6

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Control variant


position

Supply voltage


suctionMains plug

Motor variantDosing


DMH 7.5-200DMH 10-200DMH 13-200DMH 15-200

BAT5

SSSS-L

EVT

SS X F 2 C2C2 X E3

Ac

ce

ss

ori

es

fo

r s

ma

ll d

os

ing

pu

mp

s

DMH 7

7. Accessories for small dosing pumps

Grundfos offer a comprehensive range of accessories covering every need when dosing with Grundfos pumps.

Installation kits for dosing pumpsAn installation kit includes the following parts:

• injection unit with spring-loaded check valve (see page 41)

• PE discharge tubing, 19.7 ft (6 m).

• PVC suction tubing, 6.5 ft (2 m).

• PVC deaeration tubing, 6.5 ft (2 m).

• foot valve with strainer and weight, without or with level indication (see page 37).

Fig. 28 Installation kit with foot valve without level indication

Fig. 29 Installation kit with foot valve with level indication

Technical data

TM

04

16

00

03

12

TM

04

84

69

05

12

Max. flow rate* [gal./h (l/h)]

Size Material of foot valve / injection unit Product number

Suction / discharge tubing

[in.]

Deaeration tubing

[in.]Housing Gasket Ball

Foot valve without level indication

Foot valve with level indication

2 (7.5) 0.17" x 1/4" 0.17" x 1/4"

PPFKM Ceramic 95730488 95730512

EPDM Ceramic 95730489 95730513

PVC

FKM Ceramic 95730490 95730514

EPDM Ceramic 95730491 95730515

PTFE Ceramic 95730492 95730516

PVDF

FKM Ceramic 95730493 95730517

EPDM Ceramic 95730494 95730518

PTFE Ceramic 95730495 95730519

8 (30) 1/4" x 3/8" 0.17" x 1/4"

PPFKM Ceramic 95730496 95730520

EPDM Ceramic 95730497 95730521

PVC

FKM Ceramic 95730498 95730522

EPDM Ceramic 95760499 95730523

PTFE Ceramic 95730500 95730524

PVDF

FKM Ceramic 95730501 95730525

EPDM Ceramic 95730502 95730526

PTFE Ceramic 95730503 95730527

15.85 (60) 3/8" x 1/2" 0.17" x 1/4"

PPFKM Ceramic 95730504 95730528

EPDM Ceramic 95730505 95730529

PVC

FKM Ceramic 95730506 95730530

EPDM Ceramic 95730507 95730531

PTFE Ceramic 95730508 95730532

PVDF

FKM Ceramic 95730509 95730533

EPDM Ceramic 95730510 95730534

PTFE Ceramic 95730511 95730535

* Viscosity similar to water

35

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36

Cables and plugsCables and plugs are used for the connection of the dosing pump to external control devices. For cables and plugs for large dosing pumps, please see page 49.

TubingTubing is available in various materials, sizes and lengths.

Fig. 30 Tubing

Technical data

TM

04

82

68

04

11

Inner/outer dia. [in.]

MaterialMax. pressure

[psi (bar)]Length[ft (m)]

Product number

0.125 x 1/4 PVC 85 (6 bar) 20 (6.0) 91127749

0.125 x 1/4 PVC 85 (6 bar) 100 (30.5) 98257648

1/4 x 3/8

PVC 73 (5 bar) 100 (30.5) 91127750

PE 192 (13 bar)20 (6.0) 91127825

100 (30.5) 91127751

ETFE 290 (20 bar) 100 (30.5) 91127753

3/8 x 1/2 PE 123 (8.5 bar)20 (6.0) 91127826

100 (30.5) 91127752

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DMH 7

Foot valvesFoot valves are installed at the lower end of the suction tubing. They are available either without level indication or with low-level and empty-tank indication.

Foot valves include:

• Weight

• strainer (mesh size approx. 0.03 in. (0.8 mm))

• check valve

• tubing connection set:

– 0.17" x 1/4"

– 1/4" x 3/8"

– 3/8" x 1/2"

• pipe connection set: threaded, 1/4" NPT, female (stainless steel).

Foot valves with low-level and empty-tank indication include additionally:

• Reed-switch unit with two floaters

• 16.4 ft (5 m) of cable with PE jacket

• M 12 plug (to connect to a DMH with AR control use adapter M12 to flat plug 96635010)

• PE cap, ∅2.28 in. (58 mm), for assembly in Grundfos cylindrical tanks, or for use with tank adaptors.

The switch mode of the low-level and empty-tank indication is factory-set to NO. The switch mode can be set to NC by turning the floaters upside down.

Electrical data of the level indication:

• Max. voltage: 48 V

• max. current: 0.5 A

• max. load: 10 VA.

Fig. 31 Left: foot valve without level indication; right: foot valve with level indication

Dimensions

Fig. 32 Left: stainless-steel foot valve; center and right:PE or PVDF foot valve, dimensions

Technical data

TM

04

84

76

05

12

TM

06

20

64

35

14

G 5/8

1-1/8" (30 mm)

(4 m

m)

1/8"

1-1/

8"(3

0 m

m)

G 5/8

(67.

5 m

m)

2-5/

8"

(19

mm

)3/

4"

(196

mm

)

(103

.5 m

m)

4-1/

8"

(19

mm

)3/

4"

G 5/8

(58 mm)

(35 mm)1-3/8"

(35 mm)1-3/8"

(43.

5 m

m)

1-5/

8"

1/2" (12 mm)

3/8" (9 mm)

(6 mm)

AA

1/4"

2-1/4"

7-3/

4"

Max. flow rate [gal./h (l/h)]

Material Product number

Housing Gasket BallWithout level

indicationWith level indication

15.85 (60)

PEFKM, EPDM Ceramic 98070955 98070970

PTFE Ceramic 98070956 98070971

PVDFFKM, EPDM Ceramic 98070957 98070972

PTFE Ceramic 98070958 98070973

SS PTFE SS 98070964 -

37

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Suction lancesSuction lances are installed at the lower end of the suction tubing. They are available either without level indication or with low-level and empty-tank indication. Their immersion depth is adjustable.

Suction lances include:

• Strainer (mesh size approx. 0.03 in. (0.8 mm))

• check valve


– 0.17" x 1/4"

– 1/4" x 3/8"

– 3/8" x 1/2"

• adjustable tank connection with holes for e.g. relief line.

Suction lances with low-level and empty-tank indication include additionally:

• Reed-switch unit with 2 floaters

• 16.4 ft (5 m) of cable with PE jacket

• M 12 plug (to connect to a DMH with AR control use adapter M12 to flat plug 96635010).

The switch mode of the low-level and empty-tank indication is factory-set to NO. The switch mode can be set to NC by turning the floaters upside down.

Electrical data of the level indication:




Fig. 33 Suction lance

Dimensions

Fig. 34 Suction lance, dimensions

Dimensions / selection

* For suitable adaptors, see page 40.

TM

04

84

58

03

12

TM

06

20

63

35

14

For dosing tank typeTank volume

[gal. (l)]

Recommended immersion depth (L)

[In. (mm)]

Grundfos cylindrical tank

16 (60) 19.50 (500)

26 (100) 27.13 (690)

52 (200) 27.13 (690)

79 (300) 38.50 (980)

132 (500) 43.25 (1100)

264(1000) 47.25 (1200)

Grundfos square tank* 26(100) 27.13 (690)

L-ring drum*31 (120) 32.25 (820)

58 (220) 38.50 (980)

Steel drum* 57 (216) 38.50 (980)

Standard jerricans according to EN 12712*

3, 9 (12, 33)(large cap)

15.75 (400)

7, 8, 9 (25, 30, 33) 19.50 (500)

16 (60) 27.13 (690)

IBC* all sizes 47.25 (1200)

4-3/

8" (1

10 m

m)

3-7/

8" (9

9 m

m)

(85

mm

)

(4.5

mm

)

(25

mm

)1"

1/8" 3-

3/8"

G 2

(68.5 mm)2-3/4"

G 5

/8

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DMH 7

Technical data

* Minimum immersion depth for all sizes: approx. 5-1/2" (140 mm).

Max. flow rate[gal./h (l/h)]

Max. immersion depth*

[in. (mm)]


Housing Gasket BallWithout level

indicationWith level indication

15.85 (60)

15-3/4 (400)


PTFE Ceramic 98070983 98071079


PTFE Ceramic 98070985 98071081

19-1/2 (500)


PTFE Ceramic 98070995 98071091


PTFE Ceramic 98070997 98071093

22-3/8 (570)


PTFE Ceramic 98071007 98071103


PTFE Ceramic 98071009 98071105

27-1/8 (690)


PTFE Ceramic 98071019 98071115


PTFE Ceramic 98071021 98071117

32-1/4 (820)


PTFE Ceramic 98071031 98071127


PTFE Ceramic 98071033 98071129

38-1/2 (980)


PTFE Ceramic 98071043 98071139


PTFE Ceramic 98071045 98071141

43-1/4 (1100)


PTFE Ceramic 98071055 98071151


PTFE Ceramic 98071057 98071153

47-1/4 (1200)


PTFE Ceramic 98071067 98071163


PTFE Ceramic 98071069 98071165

39

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40

Accessories for suction lances and foot valves with level indication

Adaptors for containers

These adaptors allow the installation of standard suction lances (G 2 thread) and foot valves with level indication (PE cap) on different types of containers.

Technical data

Emission protection kits

Gas emitted by liquid in a container can cause bad odor and corrosion. Emission protection kits help avoid such problems. Suction lances can be retrofitted with emission protection kits.

Two variants are available:

• Emission protection kit with snifting valve: no gas can escape from the container, but air can be drawn in.

• Emission protection kit for use with filter: gas can escape from the container and air can be drawn in. The kit can be connected to a filter by means of a 4/6 mm tubing.

They include:

• gasket for the tank adaptor

• snifting valve or tubing nipple 4/6 mm (tubing is not included)

• gasket for the cable outlet.

Order data

M-12-plug-to-flat-plug adaptor

The adaptor allows to connect suction lances or foot valves with level indication to pumps with a level input designed for flat plugs (e.g. DMX and DMH with AR control unit).

Order data

TM

04

85

06

07

12

Adaptor type For container type RemarkProduct number

TM

04

84

70

05

12

Counter nut for tanks without threaded opening, e.g. 26.4 gal (100 liter) square tank or 264 gal (1000 liter) cylindrical tank

PVC, grey 98071170

TM

04

84

71

05

12 Containers with 2" NPT threaded opening PVC, grey 98156690

Drums with S 70 x 6 coarse thread (MAUSER 2") PE, blue 98071171

Drums with S 56 x 4 coarse thread (TriSure®) PE, orange 98071172

TM

04

84

73

05

12

Jerricans with small opening (approx. ∅1.42 in. (∅36 m),according to EN 12713

PE, green 98071173

Jerricans with medium-sized opening (approx. ∅1.77 in. (∅45 mm),according to EN 12713

PE, yellow 98071174

Jerricans with large opening (approx. ∅2.24 in. (∅57 mm),according to EN 12713

PE, brown 98071175

US containers with bung hole of 63 mm (ASTM International) PE, white 98071176

TM

04

84

72

05

12

IBC (Intermediate Bulk Container) with opening of ∅5.9 in. (∅150 mm),S 160 x 7

PE, black 98071177

Variant Remark Product number

Emission protection kit with snifting valve

can be retrofitted 98071178

Emission protection kit for use with filter

can be retrofitted 98071179

Description Product number

M-12-plug-to-flat-plug adaptor 96635010

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DMH 7

Injection unitsInjection units connect the dosing line with the process line. They ensure a minimum backpressure of 10 psi (0.7 bar), and avoid backflow of the dosing liquid.

In general, they include:

• Injection pipe. PP, PVC and PVDF versions can be shortened.

• spring-loaded check valve with Tantal spring.


– 0.17" x 1/4"

– 1/4" x 3/8"

– 3/8" x 1/2".

• stainless steel inlet pipe connection: 1/4" female NPT.

Standard injection units

Dimensions

Fig. 35 Standard injection unit, PP, PVC, and PVDF version

Fig. 36 Standard injection unit, stainless-steel version

Technical data

Injection units with lip valveInjection units with lip valve are typically used to add sodium hypochlorite solution to water with a high carbonate content. The FKM lip prevents crystallization and blocking caused by alkali carbonate reactions at the point of injection.

Dimensions

Fig. 37 Injection unit with lip valve

Technical data

TM

06

20

56

35

14

NP

T1/

2 "

L 2 L 1

TM

06

20

57

35

14

NP

T1/

2"

L 1L 2


Max. pressure [psi (bar)]

Material Dimensions

Product numberHousing Gasket Ball

L 1[in. (mm)]

L 2[in. (mm)]

15.85 (60)

232 (16)

PPFKM Ceramic 3-7/8 (100) 1-7/8 (47) 95730906

EPDM Ceramic 3-7/8 (100) 1-7/8 (47) 95730910

PVC

FKM Ceramic 3-7/8 (100) 1-7/8 (47) 95730914

EPDM Ceramic 3-7/8 (100) 1-7/8 (47) 95730918

PTFE Ceramic 3-7/8 (100) 1-7/8 (47) 95730922

PVDF

FKM Ceramic 3-7/8 (100) 1-7/8 (47) 95730926

EPDM Ceramic 3-7/8 (100) 1-7/8 (47) 95730930

PTFE Ceramic 3-7/8 (100) 1-7/8 (47) 95730934

1450 (100) Stainless steel PTFE Stainless steel 1-1/8 (27) 2 (50) 95730938

232 (16) PVC

FKM Ceramic 11-3/4 (300) 1-7/8 (47) 95730942

EPDM Ceramic 11-3/4 (300) 1-7/8 (47) 95730946

PTFE Ceramic 11-3/4 (300) 1-7/8 (47) 95730950

TM

06

20

58

35

14

NP

T1/

2"

L 1L 2



Material Dimensions


L 1 [in. (mm)]

L 2 In.[in. (mm)]

15.85 (60) 232 (16) PVC FKM Ceramic 2 1/8 (55) 2 3/8 (59) 95730966

41

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42

Injection units with ball valveInjection units with ball valve are used for applications where the injection point must be closable. The ball valve is placed between the injection pipe and the spring-loaded check valve. Thus, the dosing line can be completely disconnected from the process. The check valve can be disassembled and cleaned without stopping the process and emptying the process line.

Dimensions

Fig. 38 Injection unit with ball valve

Technical data

Injection units, withdrawable for cleaningThese injection units are used where regular cleaning of the injection pipe is required. The construction allows the withdrawal of the injection unit from the process line and the cleaning of it, without stopping the water flow. The injection point can be closed with the integrated ball valve. The immersion depth of the injection pipe can be adjusted.

Dimensions

Fig. 39 Injection unit, withdrawable for cleaning

Technical data

Hot-injection units with ball valveHot-injection units with ball valve can be used for direct injection of dosing liquid into processes with a temperature of up to 248 °F (120 °C).

In addition, these injection units include:

• Injection pipe, stainless steel.

• Ball valve installed between the injection pipe and the cooling pipe, stainless steel.

• Bendable cooling pipe, stainless steel, length 3.28 ft (1 m).

Dimensions

Fig. 40 Hot-injection unit with ball valve

Technical data

TM

04

82

84

04

11

L 1L 2

G 1

/2



Material Dimensions


L 1[In. (mm)]

L 2 [In. (mm)]

15.85 (60)232 (16) PVC

FKM Ceramic 3-7/8 (100) 7-1/4 (183) 95730954

EPDM Ceramic 3-7/8 (100) 7-1/4 (183) 95730958

928 (64) Stainless steel PTFE Stainless steel 1-1/8 (27) 5-1/2 (138) 95730962

TM

04

82

85

04

11

L 1

G 1

/2

L 2



Material Dimensions


L 1[in. (mm)]

L 2[in. (mm)]

15.85 (60) 145 (10) PVCFKM Ceramic 7-1/4 (185) 11 (280) 95730970

EPDM Ceramic 7-1/4 (185) 11 (280) 95730974

TM

04

82

86

04

11

L 1L 2

G 1

/2



Material Dimensions


L 1[in. (mm)]

L 2[in. (mm)]

15.85 (60)232 (16) PVDF PTFE Ceramic 1-1/8 (27) 45-1/2 (1158) 95730978

928 (64) Stainless steel PTFE Stainless steel 1-1/8 (27) 45-1/2 (1158) 95730982

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Multi-function valves, pressure relief valves, pressure loading valvesMulti-function valves combine the functions of pressure relief valves and pressure loading valves. In addition, they allow deaeration of the pump and emptying of the discharge line for maintenance.

Pressure relief valves, or safety valves, protect the pump and the discharge installations against excessive pressure. All pressurized dosing installations should include a pressure relief valve.

Pressure loading valves maintain a certain backpressure for the pump. They are used in applications with too low backpressure or no backpressure at all. Pressure loading valves are also used to prevent siphoning, when the admission pressure is higher than the backpressure. They provide a constant backpressure for the dosing pump when the system pressure is fluctuating.

Fig. 41 Multi-function valve, pressure relief valve, pressure loading valve

Multi-function valvesA multi-function valve is mounted directly on the pump discharge side. The top connection is for the discharge line, the side connection leads the relief liquid back into the tank.

• Loading pressure, adjustable from 14.5 to 58 psi (1 to 4 bar), is factory-set to 43.5 psi (3 bar).

• Relief pressure, adjustable from 101 to 232 psi (7 to 16 bar), is factory-set to 145 psi (10 bar).

• Max. system pressure 232 psi (16 bar).

• Tubing connection set:

– 0.17" x 1/4"

– 1/4" x 3/8"

– 3/8" x 1/2".

Dimensions

Fig. 42 Multi-function valve

Technical data

TM

04

82

87

04

11T

M0

6 2

05

9 3

51

43-5/

8" (9

2 m

m)

5-1/2 " (139 mm)

(45

mm

)1-

3/4"

1-7/

8" (4

7 m

m)

(45 mm)1-3/4"

G 5/8

(60 mm)2-3/8"



Housing Connections Gasket DiaphragmRelief pressure 145 psi (10 bar)

15.85 (60) PVDF

PPFKM PTFE 95730813

EPDM PTFE 95730814

PVC

FKM PTFE 95730815

EPDM PTFE 95730816

PTFE PTFE 95730817

PVDF

FKM PTFE 95730818

EPDM PTFE 95730819

PTFE PTFE 95730820

43

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44

Pressure relief valvesPressure relief valves are installed in the discharge line near the pump, using the 2 in-line connections. The side connection leads the relief liquid back into the tank.

• Relief pressure, adjustable from 72.5 to 145 psi (5 to 10 bar), is factory-set to 145 psi (10 bar), or

• Max. system pressure 232 psi (16 bar).

• Tubing connection set: 0.17" x 1/4", 1/4" x 3/8" and 3/8" x 1/2".

• Pipe connection set: threaded, 1/4" NPT, female (stainless steel).

Dimensions

Fig. 43 Pressure relief valve. Dimensions in brackets apply to stainless-steel version

Technical data

Pressure loading valvesPressure loading valves are installed in the discharge line after the pressure relief valve, and after the pulsation damper, if fitted.

• Loading pressure, adjustable from 14.5 to 72.5 psi (1 to 5 bar), is factory-set to 43.5 psi (3 bar).

• Max. system pressure: 232 psi (16 bar).

• Tubing connection set:

– 0.17" x 1/4"

– 1/4" x 3/8"

– 3/8" x 1/2"

• Pipe connection set: threaded, 1/4" NPT, female (stainless steel).

Dimensions

Fig. 44 Pressure loading valve. Dimensions in brackets apply to stainless-steel version.

Technical dataT

M0

6 2

06

0 3

51

4

(4.5 mm)1/8"

3/4" [20 mm]1-7/8" (48 mm)

1-5/

8" [4

0 m

m]

3-3/

4" (9

6 m

m)

3-1/8" (78 mm)

7/8" (21 mm)7/8" [22 mm]

3-1/4" (82 mm)

2-5/

8" (6

8 m

m)

2-5/

8" [6

8 m

m]



Diaphragm Housing and connections GasketRelief pressure 145 psi (10 bar)

15.85 (60) PTFE

PP FKM / EPDM 95730762

PVCFKM / EPDM 95730763

PTFE 95730764

PVDFFKM / EPDM 95730765

PTFE 95730766

Stainless steel No gaskets 95730772

TM

06

20

61

35

14

7/8" [22 mm]7/8" (21 mm)

2-5/

8" [6

8 m

m]

2-5/

8" (6

8 m

m)

3-1/4" (82 mm)3-1/4" [82 mm]

(4.5 mm)1/8"

3-1/8" (78 mm)

1-5/

8" [4

0 m

m]

3-3/

4" (9

6 m

m)


MaterialProduct number

Diaphragm Housing and connections Gasket

15.85 (60) PTFE



PTFE 95730748


PTFE 95730750

Stainless steel No gaskets 95730752

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Pump connection kits and inlay kitsRetrofit pump connection kits and inlay kits for the integration of Grundfos standard pumps into installations with various sizes of tubing or pipes.

A pump connection kit includes:

• 1 set of inlays

• 1 union nut.

An inlay kit includes:

• 2 sets of inlays. Fig. 45 Left: pump connection kit; right: inlay kit

Technical data

TM

04

82

94

04

11

TM

04

82

95

04

11

Connection type Size MaterialProduct number

Connection kit Inlay kit

Tubing (cone and ring)

4/6 mm, 6/9 mm, 6/12 mm, 9/12 mm

PP 97691902 -

PVC 97691903 -

PVDF 97691904 -

0.17" x 1/4", 1/4" x 3/8", 3/8" x 1/2"

PP 97691905 -

PVC 97691906 -

PVDF 97691907 -

Tubing (cone and ring)

4/6 mm, or 0.17" x 1/4"

PP 97702474 95730984

PVC 97702485 95730720

PVDF 97702495 95730729

4/9 mm

PP 98153922 98153977

PVC 98153944 98154006

PVDF 98153949 98154029

5/8 mm

PP 97702475 95730711

PVC 97702486 95730721

PVDF 97702496 95730730

6/8 mm

PP 97702476 95730712

PVC 97702487 95730722

PVDF 97702497 95730731

6/9 mm

PP 97702477 95730713

PVC 97702488 95730723

PVDF 97702498 95730732

6/12 mm

PP 97702478 95730714

PVC 97702489 95730724

PVDF 97702499 95730733

9/12 mm

PP 97702479 95730715

PVC 97702490 95730725

PVDF 97702500 95730734

1/4" x 3/8

PP 97702482 95730718

PVC 97702492 95730727

PVDF 97702503 95730737

3/8" x 1/2"

PP 97702483 95730719

PVC 97702493 95730728

PVDF 97702504 95730738

Tubing (cutting ring type) 1/8" x 1/4"PP 97702481 95730717

PVDF 97702502 95730736

Pipe welding External diameter 0.629 in. (16 mm)PP 97702480 95730716

PVDF 97702501 95730735

Pipe cementing Internal diameter 0.472 in. (12 mm) PVC 97702491 95730726

Pipe, threaded, male 1/2" NPT

PP 97702484 -

PVC 97702494 -

PVDF 97702505 -

Stainless steel 97702508 -

Pipe, threaded, femaleRp 1/4" Stainless steel 97702472 95730739

1/4" NPT Stainless steel 97702473 95730740

Pipe (cutting ring type)4/6 mm Stainless steel 97702506 -

8/10 mm Stainless steel 97702507 -

45

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Adaptors

Threaded adaptorsThreaded adaptors are used to convert between different threaded connection sizes.

A threaded adaptor kit includes:

• 1 adaptor

• 1 O-ring.

Technical data

TypeThreaded connection size Material

Product numberFemale Male Housing Gaskets

TM

04

82

96

04

11

G 3/8 G 5/8



PTFE 95730409


PTFE 95730411

TM

04

82

97

04

11

G 5/8 G 3/8



PTFE 95730414


PTFE 95730416

TM

04

82

98

04

11

G 5/8 G 3/4



PTFE 95730419


PTFE 95730421

TM

04

82

99

04

11

G 5/8 G 1 1/4



PTFE 95730424


PTFE 95730426

TM

04

83

00

04

11

G 5/8 M 20 x 1.5



PTFE 95730429


PTFE 95730431

TM

04

84

75

06

12

G 5/8 M 30 x 3.5 PVDF

FKM / EPDM 98154048

PTFE 98154054

TM

04

83

01

04

11

G 1 1/4 G 5/8



PTFE 95730434


PTFE 95730436

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Union nut adaptorsUnion nut adaptors consist of a rigid pipe with union nuts on both ends. They have neither gaskets nor glued or welded connections.

Technical data

Tubing-to-tubing and tubing-to-pipe adaptors

Technical data

T-pieces

Technical data

TypeThreaded connection size Material

Product numberFemale Female Housing

TM

04

83

06

04

11

G 5/8 G 5/8

PVC 95730437

PP 95730438

PVDF 95730439

Type Description

Connections Material

Product numberSide 1 Side 2

Housing and connections

Gaskets

TM

04

83

02

04

11

Valve housing with two male threads G 5/8

For tubing0.17" x 1/4",1/4" x 3/8",3/8" x 1/2"



PTFE 95730374


PTFE 95730376

Without



PTFE 95730358


PTFE 95730360

WithoutThreaded 1/4"

NPTStainless steel PTFE 95730710

Type Description

Connections Material

Product numberBottom Top Side

Housing and connections

Gaskets

TM

04

83

04

04

11

Three male threads G 5/8

For tubing0.17" x 1/4",1/4" x 3/8",3/8" x 1/2"



PTFE 95730394


PTFE 95730396

- Without -



PTFE 95730348


PTFE 95730350

TM

04

83

05

04

11

Two male threads G 5/8,

one female connection with

union nut

Union nut G 5/8

Without

For tubing 0.17" x 1/4", 1/4" x 3/8", 3/8" x 1/2"



PTFE 95730404


PTFE 95730406

Without



PTFE 95730353


PTFE 95730355

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8. Accessories for large dosing pumps

Grundfos offers a comprehensive range of accessories covering every need when dosing with Grundfos pumps.

The following accessories are suitable for large dosing pumps, such as DMH with more than 13 gal./h (50 l/h).

To find the suitable hydraulic accessories for your pump, please compare the connection size and material combination of your pump with the data in this booklet.

• G 5/4 = G 1 1/4 = DN 20

• G 2 = DN 32

Overview of a dosing system

Fig. 46 Overview of a dosing system

Legend

Additional accessories

TM

03

21

24

37

05

2

1

8

3

64

7

5

9

10

Pos. Component

1 Dosing tank

2 Electric stirrer

3 Lateral discharge device

4 Pulsation damper, suction side

5 Dosing pump

6 Pressure-relief valve

7 Pressure-loading valve

8 Pulsation damper, discharge side

9 Measuring glass

10 Injection unit

Accessories

Hoses

Foot valve

Suction line

Level-control unit

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DMH 8

Cables and plugsThe listed cables and plugs are suitable for the connection of a pump to external control devices, such as process controllers, flow meters, start/stop contacts and level sensors.

Cables and plugs for DMH pumps with AR control

Technical data

Socket Application Pins Plug typeCable length

[ft (m])Product number

Input Analog pulse remote switch 4Straight

6.5 (2) 96609014

16.4 (5) 96609016

no cable 96698715

Angled 6.5 (2) 96693246

OutputError relay

(stroke or low-level relay)4

Straight

6.5 (2) 96609017

16.4 (5) 96609019

no cable 96696198

Angled 6.5 (2) 96698716

Output Analog 5Straight

6.5 (2) 96632921

16.4 (5) 96632922

no cable 96609031

Angled 6.5 (2) 96699697

Input

Low-level; for DDI 4

Straight

- 96698715

Empty tank; for DMX/DMH AR

2soldered cable

96679388

Low-level; for DMX/DMH AR

3 96630345

Adapter, flat-round Low-level 4 - 96635010

ProfibusY-connector;

for DDI - 96693735

Terminating resistor - 96693737

Mains (DDI 222) 110-240 VAC 3 Angled - 96698717

4

3

2

5

6

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50

Foot valveFoot valve complete with check valve, strainer and tube or pipe connection.

Dimensions

Technical data

TM

05

90

53

08

13

TM

01

92

85

16

00

Max flow rate[gal./h (l/h)]

SizeMaterials Connection Dimensions

Product numberHousing Gasket Ball Type ID/OD or NPT ∅ [in. (mm)] L [in. (mm)]

105 (400) NPT 3/4"

PPEPDM

CeramicNPT 3/4" 3/4" (19.05) 4.5 (114.3)

96566136

FKM 96566138

PVDF FKM 96566139

SS FKM SS 96537921

303 (1150) NPT 1 1/4"

PP EPDM

GlassNPT 1 1/4" 1 1/4" (31.75) 6.6 (167.64)

96566145

PP FKM 96566146

PVDF FKM 96566147

SS FKM SS 96537970

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Injection valveInjection valve complete with spring-loaded check valve, injection pipe and tube or pipe connection.

Spring material: Hastelloy

Opening pressure: 16 psi (1.1 bar).

Max. temperature:PP, PVDF: 122 °F (50 °C)PVC: 104 °F (40 °C)Stainless steel: 176 °F (80 °C)

Dimensions

Technical data

TM

06

03

37

12

13

TM

01

92

78

31

00

- T

M0

2 6

43

3

L

d

Max flow rate[gal./h (l/h)]

SizeMaterials Connection Dimensions

Product numberHousing Gasket Ball Type NPT d [in.] L [in.]

105 (400) NPT 3/4"

PPEPDM

CeramicNPT 3/4" 3/4" NPT 4.8 (122)

96566142

FKM 96566143

PVDF FKM 96566144

SS FKM SS 96537923

303 (1150) NPT 1 1/4"

PP EPDM

GlassNPT 1 1/4" 1 1/4" NPT 4.73 (120)

96566148

PP FKM 96566149

PVDF FKM 96566152

SS FKM SS 96537971

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Calibration columns• Graduated cylinders in ml

• NPT connections

• glass column protected by outer acrylic shield

Fig. 47 Glass (left) or PVC (right)

Suggested column size for DMH pumpsT

M0

6 0

21

5 1

21

3 -

TM

06

02

14

12

13

Materials Volume[ml]

ConnectionNPT

MaterialnumberTube End cap

PVC PVC

100 1/2" 97918766

250 1/2" 97918767

500 1/2" 97918768

1000 1/2" 97918769

2000 1" 97918770

4000 1" 97918771

10000 2" 97918772

20000 2" 97918773

Glass PVDF

100 1/2" 97918774

250 1/2" 97918775

500 1/2" 97918776

1000 1/2" 97918777

2000 1" 97918778

4000 1" 97918779

6000 2" 97918780

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Back-pressure or relief valve selectionValves can be used for either back pressure or pressure relief.

• Back pressure: Two port valve installed in-line on the pump discharge line provides continuous pressure to facilitate proper pump check valve operation to maintain accuracy and prevent siphoning.

• Pressure relief: Two port offline valve installed on the pump discharge is designed to protect the pump and discharge line from overpressure due to blocked discharge piping or closed valves downstream.

• Back pressure installation: In-line.

• Pressure relief installation: T-connection offline.

• Setting range: 7 to 150 psi (0.48 to 10.3 bar).

• Factory set opening pressure: 50 psig (3.44 bar).

• Diaphragm: PTFE, or PVC on PVC valve body.

Technical data

TM

05

96

73

10

13

Max. pressure vs. temperature

TemperatureValve material

PVC CPVC PP PVDF SS

°F °C [psi (bar)] [psi (bar)] [psi (bar)] [psi (bar)] [psi (bar)]

68 20 150 (10.3)

150 (10.3)150 (10.3)

150 (10.3) 150 (10.3)86 30 110 (7.6)

104 70 70 (4.8) 100 (6.9)

122 30 30 (2.1) 140 (9.6) 65 (4.5)

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Technical data

Back-pressure or relief valves

TM

05

96

74

10

13

PVC, CPVC, PP, PVDFDimensions [in. (mm)]

Size DN ∅ D h H L L L L

Connection type Thread Socket Union Flange

1/4" 8

2.5 (63.5) .66 (16.7) 4.48 (113.9) 3.4 (86.4) 3.4 (86.4) 6 (152.4)N/A

3/8" 10

1/2" 15 5.4 (137.2)

3/4" 203.5 (88.9) .88 (22.4) 4.8 (121.9) 4.85 (123.2) 4.85 (123.2) 6.96 (176)

7.37 (187.1)

1" 25 7.48 (190)

1 1/4" 32

4 (101.6) 1.47 (37.3) 5.75 (146.1)

4.9 (124.5) 4.9 (124.5)

9.4 (237.7)

7.8 (198.1)

1 1/2" 406.1 (154.9) 6.1 (154.9)

9.2 (234.7)

2" 50 9.54 (242.3)

316L stainless steelDimensions [in. (mm)]

Size DN ∅ D h H L L L L

Connection type Thread Socket Union Flange

1/4" 8

2.5 (63.5)

.66 (16.7) 4.47 (113.5)

2.5 (63.5) 2.5 (63.5) N/AN/A

3/8" 10 .49 (12.4) 4.58 (116.3)

1/2" 15 .66 (16.7) 4.72 (119.9) 6.25 (158.8)

3/4" 203.5 (88.9)

.73 (18.5) 4.8 (121.9)3.5 (88.9) 3.5 (88.9) N/A

7.48 (190.1)

1" 25 .86 (21.8) 5.1 (129.5) 7.63 (193.9)

1 1/4" 32

4 (101.6)

1.05 (26.7) 5.77 (146.6) 4 (101.6) 4 (101.6)

N/A

8.29 (210.6)

1 1/2" 401.45 (36.8) 5.82 (147.8) 4.72 (119.9) 4.72 (119.9)

9.59 (243.6)

2" 50 9.72 (246.9)

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Type key


Note: Viton o-ring seals are standard on all union style valves. EPDM and PTFE encapsulated o-rings are available as an option.

Example BPV/PRV ECO- 50 A- PVC- P- NL

Back Pressure / Relief Valve2 port design

Size:25 = 1/4", DN 838 = 3/8", DN 1050 = 1/2", DN 1575 = 3/4", DN 20100 = 1", DN 25125 = 1 1/4", DN 32150 = 1 1/2", DN 40200 = 2", DN 50

Connections:A = NPTB = BSPTC = Socket (ANSI)D = Socket (DIN)E = Flanged (ANSI)F = Flanged (DIN)G = Union x NPT (plastic only)H = Union x BSPT (plastic only)I = Union x Socket (ANSI, plastic only)J = Union x Socket (DIN, plastic only)

Body material:PVC = PolyvinylchlorideCPVC = Chlorinated PVC (Corzan)PP = PolypropylenePVDF = Polyvinyldene FlourideSS = 316L Stainless Steel

Diaphragms:P = PVC (standard on PVC valves)T = PTFE backed EPDM (standard except PVC valves)E = EPDMV = Viton

Options:NL = Gauge port, NPT, left to right flowBL = Gauge port, BSP, left to right flowNR = Gauge port, NPT, right to left flowBR = Gauge port, BSP, right to left flow

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Size Connection Valve type Description Material number

1/2"

NPT

PVC BPV/PRV ECO-50A-PVC-P 98533515

CPVC BPV/PRV ECO-50A-CPVC-T 98533516

PP BPV/PRV ECO-50A-PP-T 98533517

PVDF BPV/PRV ECO-50A-PVDF-T 98533518

SS BPV/PRV ECO-50A-SS-T 98533519

Socket weldASTM

PVC BPV/PRV ECO-50C-PVC-P 98533984

CPVC BPV/PRV ECO-50C-CPVC-T 98533986

PP BPV/PRV ECO-50C-PP-T 98533987

PVDF BPV/PRV ECO-50C-PVDF-T 98533988

SS BPV/PRV ECO-50C-SS-T 98533989

Union NPTSocket inserts

PVC BPV/PRV ECO-50G-PVC-P 98533996

CPVC BPV/PRV ECO-50G-CPVC-T 98533997

PP BPV/PRV ECO-50G-PP-T 98533999

PVDF BPV/PRV ECO-50G-PVDF-T 98534000

Union ASMTSocket inserts

PVC BPV/PRV ECO-50I-PVC-P 98534011

CPVC BPV/PRV ECO-50I-CPVC-T 98534013

PP BPV/PRV ECO-50I-PP-T 98534014

PVDF BPV/PRV ECO-50I-PVDF-T 98534016

FlangedANSI

PVC BPV/PRV ECO-50E-PVC-P 98534021

CPVC BPV/PRV ECO-50E-CPVC-T 98534022

PP BPV/PRV ECO-50E-PP-T 98534023

PVDF BPV/PRV ECO-50E-PVDF-T 98534024

SS BPV/PRV ECO-50E-SS-T 98534025

3/4"

NPT






Socket weldASTM






Union NPTSocket inserts





Union ASMTSocket inserts





FlangedANSI






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DMH 8



1"

NPT






Socket weldASTM






Union NPTsocket inserts





Union ASMTsocket inserts





FlangedANSI






1 1/4"

NPT






Socket weldASTM
















FlangedANSI






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1 1/2"

NPT






Socket weldASTM
















FlangedANSI






2"

NPT






Socket weldASTM
















FlangedANSI






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DMH 8

Level-control unitsGrundfos level-control units are suitable for dosing pumps with input for level-control.

The switch mode of the reed switch unit is factory-set to NO. The switch mode can be set to NC by turning the floater(s).

Electrical data




Level-control unit for agitator protectionLevel-control units for agitator protection are used for suction lances for pumps up to 15.85 gal./h (60 l/h). They are clipped to the suction lances at the required switch-off height above the stirrer propeller.

Level-control units can also be used for overfill protection or as an additional tank level indication.

A level-control unit for agitator protection includes:

• Reed switch unit with 1 floater

• 16.4 ft. (5 m) cable with PE jacket and open wire ends

• clip for suction lance

• cable gland for mounting at the tank top.

Fig. 48 Level-control unit for agitator protection

Flexible level-control unitThe flexible level-control unit is suitable for dosing pumps with level-control input and provides 2 level switches

A flexible level-control unit includes:

• Reed switch unit with 2 floaters

• 16.4 ft. (5 m) of cable with PE jacket and M12 plug

• weight that keeps the level-control unit in an upright position at the tank bottom

• PE cap, ∅2.28 in. (58 mm), for assembly in Grundfos cylindrical tanks, or for use with tank adaptors.

Dimensions

Fig. 49 Flexible level-control unit

TM

06

20

90

36

14

Description Material Product number

Level-control unit for agitator protection

PE 98306210

(32 mm)1-1/4"

(45 mm)1-3/4"

(32 mm)1-1/4"

(28

mm

)1-

1/8"

(190

mm

)7-

1/2"

M12 x 1.5

TM

06

20

91

36

14

Description Material Product number

Flexible level-control unit PE 98375695

"

"

"

""

"

"

"

"

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60

Wall bracketWall bracket for easy installation of a dosing pump on a wall.

Dimensions

Fig. 50 Wall bracket for DMH 251/251

Technical data

TM

06

19

46

34

14

4.72

in.

(120

mm

)1.

18 in

.(3

0 m

m)

6.29 in. (160 mm)

4.21

in. (

107

mm

)

0.59 in.(15 mm)

7.48 in. (190 mm)

5.98 in. (152 mm)0.75 in.(19 mm)

6.49

in. (

165

mm

)3.

85 in

. (98

mm

)

6.69

in. (

170

mm

)

Ø 0.35in.(9 mm)

Ø 0.35in.(9 mm)

For pump type Material Including fixing material for: Product number

DMH 251/252 PP Pump on bracket, bracket on wall 96623672

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DMH 9

9. Pumped liquidsThe resistance table below is intended as a general guide for material resistance (at room temperature), and does not replace testing of the chemicals and pump materials under specific working conditions.

The data shown are based on information from various sources available, but many factors (purity, temperature, abrasive particles, etc.) may affect the chemical resistance of a given material.

Note: Some of the liquids in this table may be toxic, corrosive or hazardous. Please be careful when handling these liquids.

For further information, see "Pumped liquid guide".

Pumped liquid, 68 °F (20 °C)Material

Dosing head Gasket Ball

DescriptionChemical formula

Concentration[%]

PP

PV

DF

SS

1.4

57

1

SS

2.4

61

0

(All

oy

C-4

)

SS

P

TF

E-c

oa

ted

PV

C

FK

M

EP

DM

PT

FE

Ce

ram

ic

Gla

ss

Acetic acid CH3COOH

25 -

60 -

85 - - -

Aluminium chloride AlCl3 40 - -

Aluminium sulphate Al2(SO4)3 60 -

Ammonia, aqueous NH4OH 28 - - -

Calcium hydroxide4 Ca(OH)2

Calcium hypochlorite Ca(OCl)2 20 -

Chromic acid3 H2CrO4

10

30 - - -

50 - - - -

Copper sulphate CuSO4 30

Ferric chloride1 FeCl3 45 - -

Ferric sulphate1 Fe2(SO4)3 60

Ferrous chloride FeCl2 37 - -

Ferrous sulphate FeSO4 30

Fluosilicic acid H2SiF6 40 - -

Hydrochloric acid HCl< 25 -

25-37 -

Hydrogen peroxide H2O2 30

Nitric acid HNO3

30

40 -

70 - - -

Peracetic acid CH3COOOH 5-15 -

Potassium hydroxide KOH 50 - - -

Potassium permanganate KMnO4 10

Sodium chlorate NaClO3 30

Sodium chloride NaCl 30 -

Sodium chlorite NaClO2 20 -

Sodium hydroxide NaOH

20 - -

30 -

50 - -

Sodium hypochlorite NaOCl 12-15 - - 5

Sodium sulphide Na2S 30 - -

Sodium sulphite Na2SO3 20 - -

Sodium thiosulfate Na2S2O3 10

Sulphurous acid H2SO3 6

Sulphuric acid2 H2SO4

< 80 - 80-96 - - -

98 - - - -

Resistant 1 Risk of crystallization2 Reacts violently with water and generates much heat (pump must be absolutely dry before dosing sulphuric acid)3 Must be fluoride-free when glass balls are used4 Once the pump is stopped, calcium hydroxide will sediment rapidly5 Not resistant for sodium hypochlorite generated on site

Limited resistance

- Not resistant

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10. Further product information

WebCAPS

WebCAPS is a Web-based Computer Aided Product Selection program available on www.grundfos.us.

WebCAPS contains detailed information on more than 220,000 Grundfos products in more than 30 languages.

Information in WebCAPS is divided into six sections:

• catalog

• literature

• service

• sizing

• replacement

• cad drawings.

Catalog

Based on fields of application and pump types, this section contains the following:• technical data• curves (QH, Eff, P1, P2, etc.) which can be adapted to the

density and viscosity of the pumped liquid and show the number of pumps in operation

• product photos• dimensional drawings• wiring diagrams• quotation texts, etc.

Literature

This section contains all the latest documents of a given pump, such as• data booklets• installation and operating instructions• service documentation, such as service kit catalog and service

kit instructions• quick guides• product brochures.

Service

This section contains an easy-to-use interactive service catalog. Here you can find and identify service parts of both existing and discontinued Grundfos pumps.Furthermore, the section contains service videos showing you how to replace service parts.

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tio

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DMH 10

WinCAPS

Fig. 51 WinCAPS DVD

Sizing

This section is based on different fields of application and installation examples and gives easy step-by-step instructions in how to size a product:• Select the most suitable and efficient pump for your

installation.• Carry out advanced calculations based on energy,

consumption, payback periods, load profiles, life cycle costs, etc.

• Analyze your selected pump via the built-in life cycle cost tool.• Determine the flow velocity in wastewater applications, etc.

Replacement

In this section you find a guide to selecting and comparing replacement data of an installed pump in order to replace the pump with a more efficient Grundfos pump. The section contains replacement data of a wide range of pumps produced by other manufacturers than Grundfos.

Based on an easy step-by-step guide, you can compare Grundfos pumps with the one you have installed on your site. When you have specified the installed pump, the guide will suggest a number of Grundfos pumps which can improve both comfort and efficiency.

CAD drawings

In this section, it is possible to download 2-dimensional (2D) and 3-dimensional (3D) CAD drawings of most Grundfos pumps.

These formats are available in WebCAPS:

2-dimensional drawings:• .dxf, wireframe drawings• .dwg, wireframe drawings.

3-dimensional drawings:• .dwg, wireframe drawings (without surfaces)• .stp, solid drawings (with surfaces)• .eprt, E-drawings.

WinCAPS is a Windows-based Computer Aided Product Selection program containing detailed information on more than 220,000 Grundfos products in more than 30 languages.

The program contains the same features and functions as WebCAPS, but is an ideal solution if no internet connection is available.

WinCAPS is available on DVD and updated once a year.

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64

Grundfos GO

Mobile solution for professionals on the GO!

Grundfos GO is the mobile tool box for professional users on the go. It is the most comprehensive platform for mobile pump control and pump selection including sizing, replacement and documentation. It offers intuitive, handheld assistance and access to Grundfos online tools, and it saves valuable time for reporting and data collection.

GET IT ON

Subject to alterations.

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A/S

L-DMH-PG-01

98726885 0914

ECM: 1139887

Grundfos Kansas City17100 West 118th TerraceOlathe, Kansas 66061Phone: 913-227-3400Fax: 913-227-3500www.grundfos.us

Grundfos Canada2941 Brighton RoadOakville, Ontario L6H 6C9 CanadaPhone: +1-905-829-9533Fax: +1-905-829-9512www.grundfos.ca

Grundfos MéxicoBoulevard TLC No. 15Parque Industrial Stiva AeropuertoC.P. 66600 Apodaca, N.L. MexicoPhone: 011-52-81-8144 4000Fax: 011-52-81-8144 4010www.grundfos.mx

Documents

DMH - Grundfosnet.grundfos.com/Appl/WebCAPS/streamliterature/Grundfos... · Pump selection 25 Performance data 25 ... cooling water and process water (raw water purification,